Yeah, i had the same noisy rattle coming from the rear dome light/sunroof area, and it was driving me nut. It didn't seem like anybody had ever really pinned it down, much less pics to show how to get at any possible fix, so I started investigating. If you put down your sunroof/slife it back, and then push back the cloth cover/lid that covers the sunroof when not in us. Push it back far enuf so that you can see the black plate that goes all around the edge of the sunroof, and there on the rear side of the plate you will find 4 screw that are loose and rattle like crazy. I tightened em down, and the difference is amazing1 Absolutely no rattle! Now it feels like that $70,000 machine that it is..... I'd be glad to post some pics if anybody's interested....

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Current-

--2003 X5 4.6
Estoril Blue
Black Nappa leather
rear air bags
OEM nav
OEM hitch
OEM cargo liner
Black housing SPYDER headlights - Evo-XR projectors

2017 GMC Sierra, 7K miles...
2017 GMC Sierra, 60K miles...
2015 GMC Sierra 280K miles...
2011 GMC Sierra, 500K miles...

Previous wheels:

--First love~
1969 Chevy C10, 396BB bored, 3 on the tree, Black ~SOLD~

--2011 Chevy Silverado LT 2500HD CCSB, Black, 250K miles ~SOLD~